igneous
Graphic Granite
Graphic Granite (Pegmatite)
AI-generated identification · may be incorrectHardness of 6-7 on Mohs scale, pink to tan color with dark cuneiform quartz intergrowths, vitreous luster, and blocky alkali feldspar crystal structure.
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Physical properties
Hardness of 6-7 on Mohs scale, pink to tan color with dark cuneiform quartz intergrowths, vitreous luster, and blocky alkali feldspar crystal structure.
Formation & geological history
Formed via the rapid simultaneous crystallization of quartz and alkali feldspar in pegmatite magmas during the late stages of igneous intrusion.
Uses & applications
Used primarily as an ornamental stone, in lapidary arts, and as a popular educational specimen for geology collectors.
Geological facts
The name derives from the runes-like or cuneiform graphic appearance of the quartz crystals, which resemble ancient writing.
Field identification & locations
Identified in the field by distinctive cuneiform or runic dark quartz patterns embedded within a pink feldspar matrix; found in pegmatite-rich regions worldwide.
